Producing oxidic compounds

Abstract

A process for producing oxidic compounds of the general formula (I) LizMxOy (I) wherein M is one or more elements from groups 2 to 12 of the periodic table, more particularly selected from Co, Mn, Ni, Fe, Al, Mg, x is 1 to 2, y is 2 to 4, and z is 0.5 to 1.5, comprises heating mixtures selected from oxides, hydroxides, carbonates and nitrates of Li and of M together to temperatures in the range from 600 to 1200° C. in a reaction vessel performing incomplete rotary motions about one axis.

1 . A process for producing an oxidic compound having a formula (I)
   Li z M x O y   (I)
   
       where
 M is one or more elements from groups 2 to 12 of the periodic table, 
 x is from 1 to 2, 
 y is from 2 to 4, and 
 z is from 0.5 to 1.5, 
 the process comprising heating a mixture comprising a) an oxide, hydroxide, carbonate or nitrate of Li and b) an oxide, hydroxide, carbonate or nitrate of M together to a temperature of 600 to 1200° C. in a reaction vessel performing an incomplete rotary motion about one axis. 
 
     
     
         2 . The process of  claim 1 , wherein the axis about which the incomplete rotary motion is performed has an inclination of 1 to 20° relative to a horizontal plane. 
     
     
         3 . The process of  claim 1 , wherein the reaction vessel comprises a pendulum kiln. 
     
     
         4 . The process of  claim 1 , wherein the reaction vessel has an inclination of 1 to 20°. 
     
     
         5 . The process of  claim 1 , performed in an atmosphere comprising oxygen. 
     
     
         6 . The process of  claim 1 , wherein a) and b) are in pulverulent or pasty form. 
     
     
         7 . The process of  claim 6 , wherein a) and b) are in pasty form, wherein a paste is prepared with water or an alcohol. 
     
     
         8 . The process of  claim 1 , wherein a field of traverse of the incomplete rotary motion is 60 to 250°. 
     
     
         9 . The process of  claim 1 , wherein the heating comprises direct heating. 
     
     
         10 . The process of  claim 1 , wherein M is at least one element selected from Co, Mn, Ni, Fe, Al and Mg. 
     
     
         11 . The process of  claim 1 , wherein x is 1. 
     
     
         12 . The process of  claim 1 , wherein y is 2+(x−1)+(z−1). 
     
     
         13 . The process of  claim 1 , wherein z is 0.75 to 1.4. 
     
     
         14 . The process of  claim 1 , wherein x is 1, y is 2+(x−1)+(z−1), and z is 0.75 to 1.4. 
     
     
         15 . The process of  claim 1 , wherein M is a combination of Ni, Co and Mn selected from the group consisting of Ni 0.33 Co 0.33 Mn 0.33 , Ni 0.6 Co 0.2 Mn 0.2 , Ni 0.5 Co 0.2 Mn 0.3 , Ni 0.4 Co 0.2 Mn 0.4 , Ni 0.4 Co 0.3 Mn 0.3 , Ni 0.45 Co 0.1 Mn 0.45 , Ni 0.4 Co 0.1 Mn 0.5  and Ni 0.5 Co 0.1 Mn 0.4 . 
     
     
         16 . The process of  claim 1 , wherein the reaction vessel has a length of 2 to 200 m. 
     
     
         17 . The process of  claim 1 , wherein the reaction vessel has an average cross-sectional diameter of 200 to 10 000 mm. 
     
     
         18 . The process of  claim 1 , wherein the reaction vessel has a ratio of length to average cross-sectional diameter in a range of 50:1 to 2:1. 
     
     
         19 . The process of  claim 1 , wherein the incomplete rotary motion is performed in an oscillatory manner, at a frequency of 0.1 to 100 pendulum motions per minute. 
     
     
         20 . The process of  claim 1 , comprising heating the mixture to the temperature of 650 to 1050° C.